When an image is run through an AI upscaling process, the output often shows a distinct smudging or watercolor effect on the background. While the primary subject is sharpened and enhanced, the areas surrounding it become blurred, losing their original texture and detail. This results in backgrounds that appear painterly or washed out, lacking the crispness and definition present in the original low-resolution image, even if the foreground subject is clear. This phenomenon is an artifact of the AI’s enlargement process, where it introduces a soft, indistinct pattern to fill in the background pixels instead of accurately recreating them.
